Add error codes and error messages to failed results #89

Merged
Vylpes merged 3 commits from feature/53-error-message-return into develop 2023-09-15 15:18:58 +01:00
7 changed files with 60 additions and 5 deletions

1
.gitignore vendored
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@ -2,3 +2,4 @@ node_modules/
dist/ dist/
coverage/ coverage/
yarn-error.log yarn-error.log
.DS_Store

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@ -0,0 +1,6 @@
export enum ErrorCode {
Unknown,
FailedToFetchReddit,
UnableToParseJSON,
NoImageResultsFound,
}

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@ -0,0 +1,5 @@
export default class ErrorMessages {
public static readonly FailedToFetchReddit = "Failed to fetch result from Reddit";
public static readonly UnableToParseJSON = "Unable to parse the JSON result";
public static readonly NoImageResultsFound = "No image results found in response from Reddit";
}

6
src/contracts/IError.ts Normal file
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@ -0,0 +1,6 @@
import { ErrorCode } from "../constants/ErrorCode";
export default interface IError {
Code: ErrorCode;
Message: string;
}

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@ -1,6 +1,8 @@
import IError from "./IError.js";
import IRedditResult from "./IRedditResult.js"; import IRedditResult from "./IRedditResult.js";
export default interface IReturnResult { export default interface IReturnResult {
IsSuccess: boolean; IsSuccess: boolean;
Result?: IRedditResult; Result?: IRedditResult;
Error?: IError;
} }

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@ -1,8 +1,10 @@
import IReturnResult from "./contracts/IReturnResult.js"; import IReturnResult from "./contracts/IReturnResult";
import IRedditResult from "./contracts/IRedditResult.js"; import IRedditResult from "./contracts/IRedditResult";
import fetch from "got-cjs"; import fetch from "got-cjs";
import { List } from 'linqts'; import { List } from 'linqts';
import IFetchResult from "./contracts/IFetchResult.js"; import IFetchResult from "./contracts/IFetchResult";
import { ErrorCode } from "./constants/ErrorCode";
import ErrorMessages from "./constants/ErrorMessages";
const sortable = [ const sortable = [
'new', 'new',
@ -17,7 +19,11 @@ export default async function randomBunny(subreddit: string, sortBy?: string): P
if (!result) { if (!result) {
return { return {
IsSuccess: false IsSuccess: false,
Error: {
Code: ErrorCode.FailedToFetchReddit,
Message: ErrorMessages.FailedToFetchReddit,
},
} }
} }
@ -25,7 +31,11 @@ export default async function randomBunny(subreddit: string, sortBy?: string): P
if (!json) { if (!json) {
return { return {
IsSuccess: false IsSuccess: false,
Error: {
Code: ErrorCode.UnableToParseJSON,
Message: ErrorMessages.UnableToParseJSON,
},
} }
} }
@ -40,6 +50,10 @@ export default async function randomBunny(subreddit: string, sortBy?: string): P
if (dataWithImages.length == 0) { if (dataWithImages.length == 0) {
return { return {
IsSuccess: false, IsSuccess: false,
Error: {
Code: ErrorCode.NoImageResultsFound,
Message: ErrorMessages.NoImageResultsFound,
},
}; };
} else { } else {
random = Math.floor((Math.random() * (dataWithImages.length - 1)) + 0); // Between 0 and (size - 1) random = Math.floor((Math.random() * (dataWithImages.length - 1)) + 0); // Between 0 and (size - 1)

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@ -1,3 +1,5 @@
import { ErrorCode } from "../src/constants/ErrorCode";
import ErrorMessages from "../src/constants/ErrorMessages";
import randomBunny from "../src/index"; import randomBunny from "../src/index";
import fetch from "got-cjs"; import fetch from "got-cjs";
@ -32,6 +34,7 @@ describe('randomBunny', () => {
expect(result.IsSuccess).toBeTruthy(); expect(result.IsSuccess).toBeTruthy();
expect(result.Result).toBeDefined(); expect(result.Result).toBeDefined();
expect(result.Error).toBeUndefined();
expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/new.json'); expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/new.json');
}); });
@ -63,6 +66,7 @@ describe('randomBunny', () => {
expect(result.IsSuccess).toBeTruthy(); expect(result.IsSuccess).toBeTruthy();
expect(result.Result).toBeDefined(); expect(result.Result).toBeDefined();
expect(result.Error).toBeUndefined();
expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/hot.json'); expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/hot.json');
}); });
@ -94,6 +98,7 @@ describe('randomBunny', () => {
expect(result.IsSuccess).toBeTruthy(); expect(result.IsSuccess).toBeTruthy();
expect(result.Result).toBeDefined(); expect(result.Result).toBeDefined();
expect(result.Error).toBeUndefined();
expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/hot.json'); expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/hot.json');
}); });
@ -105,6 +110,10 @@ describe('randomBunny', () => {
expect(result.IsSuccess).toBeFalsy(); expect(result.IsSuccess).toBeFalsy();
expect(result.Result).toBeUndefined(); expect(result.Result).toBeUndefined();
expect(result.Error).toBeDefined();
expect(result.Error!.Code).toBe(ErrorCode.FailedToFetchReddit);
expect(result.Error!.Message).toBe(ErrorMessages.FailedToFetchReddit);
expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/new.json'); expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/new.json');
}); });
@ -118,6 +127,10 @@ describe('randomBunny', () => {
expect(result.IsSuccess).toBeFalsy(); expect(result.IsSuccess).toBeFalsy();
expect(result.Result).toBeUndefined(); expect(result.Result).toBeUndefined();
expect(result.Error).toBeDefined();
expect(result.Error!.Code).toBe(ErrorCode.UnableToParseJSON);
expect(result.Error!.Message).toBe(ErrorMessages.UnableToParseJSON);
expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/new.json'); expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/new.json');
}); });
@ -135,6 +148,10 @@ describe('randomBunny', () => {
expect(result.IsSuccess).toBeFalsy(); expect(result.IsSuccess).toBeFalsy();
expect(result.Result).toBeUndefined(); expect(result.Result).toBeUndefined();
expect(result.Error).toBeDefined();
expect(result.Error!.Code).toBe(ErrorCode.NoImageResultsFound);
expect(result.Error!.Message).toBe(ErrorMessages.NoImageResultsFound);
expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/new.json'); expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/new.json');
}); });
@ -166,6 +183,10 @@ describe('randomBunny', () => {
expect(result.IsSuccess).toBeFalsy(); expect(result.IsSuccess).toBeFalsy();
expect(result.Result).toBeUndefined(); expect(result.Result).toBeUndefined();
expect(result.Error).toBeDefined();
expect(result.Error!.Code).toBe(ErrorCode.NoImageResultsFound);
expect(result.Error!.Message).toBe(ErrorMessages.NoImageResultsFound);
expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/new.json'); expect(fetchMock).toBeCalledWith('https://reddit.com/r/rabbits/new.json');
}); });